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third_party/sendspin-go/internal/ui/hotkey_test.go

@@ -0,0 +1,123 @@
+// ABOUTME: Tests for the hotkey label helper — in-place reverse highlighting
+package ui
+
+import "testing"
+
+func TestHotkey_LetterInLabel(t *testing.T) {
+	tests := []struct {
+		name    string
+		trigger rune
+		label   string
+		want    string
+	}{
+		{
+			name:    "first letter match",
+			trigger: 'o',
+			label:   "Output",
+			want:    ansiReverse + "O" + ansiReset + "utput",
+		},
+		{
+			name:    "case-insensitive — lowercase trigger, uppercase in label",
+			trigger: 'q',
+			label:   "Quit",
+			want:    ansiReverse + "Q" + ansiReset + "uit",
+		},
+		{
+			name:    "case-insensitive — uppercase trigger, lowercase in label",
+			trigger: 'E',
+			label:   "enter",
+			want:    ansiReverse + "e" + ansiReset + "nter",
+		},
+		{
+			name:    "trigger matches a non-initial letter",
+			trigger: 'u',
+			label:   "Quit",
+			want:    "Q" + ansiReverse + "u" + ansiReset + "it",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := hotkey(tt.trigger, tt.label)
+			if got != tt.want {
+				t.Errorf("hotkey(%q, %q) =\n  %q\nwant\n  %q", tt.trigger, tt.label, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestHotkey_LetterNotInLabel(t *testing.T) {
+	got := hotkey('x', "Bye")
+	want := "[" + ansiReverse + "X" + ansiReset + "] Bye"
+	if got != want {
+		t.Errorf("missing-letter fallback =\n  %q\nwant\n  %q", got, want)
+	}
+}
+
+func TestHotkey_SpecialKeys(t *testing.T) {
+	tests := []struct {
+		name    string
+		trigger rune
+		label   string
+		want    string
+	}{
+		{
+			name:    "space",
+			trigger: KeySpace,
+			label:   "Play/Pause",
+			want:    "[" + ansiReverse + "Space" + ansiReset + "] Play/Pause",
+		},
+		{
+			name:    "up-down combined",
+			trigger: KeyUpDown,
+			label:   "Volume",
+			want:    "[" + ansiReverse + "\u2191\u2193" + ansiReset + "] Volume",
+		},
+		{
+			name:    "enter",
+			trigger: KeyEnter,
+			label:   "Save",
+			want:    "[" + ansiReverse + "Enter" + ansiReset + "] Save",
+		},
+		{
+			name:    "esc",
+			trigger: KeyEsc,
+			label:   "Cancel",
+			want:    "[" + ansiReverse + "Esc" + ansiReset + "] Cancel",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := hotkey(tt.trigger, tt.label)
+			if got != tt.want {
+				t.Errorf("hotkey(%q) =\n  %q\nwant\n  %q", tt.trigger, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestHotkey_EmptyLabel(t *testing.T) {
+	// Letter with empty label uses the bracket fallback since nothing to match.
+	got := hotkey('q', "")
+	want := "[" + ansiReverse + "Q" + ansiReset + "]"
+	if got != want {
+		t.Errorf("empty label with letter =\n  %q\nwant\n  %q", got, want)
+	}
+
+	// Special key with empty label uses bracket without trailing space.
+	got = hotkey(KeyEsc, "")
+	want = "[" + ansiReverse + "Esc" + ansiReset + "]"
+	if got != want {
+		t.Errorf("empty label with special =\n  %q\nwant\n  %q", got, want)
+	}
+}
+
+func TestHotkey_Symbol(t *testing.T) {
+	// Symbols aren't letters; they use the bracket prefix with the literal rune.
+	got := hotkey('/', "Slash")
+	want := "[" + ansiReverse + "/" + ansiReset + "] Slash"
+	if got != want {
+		t.Errorf("symbol trigger =\n  %q\nwant\n  %q", got, want)
+	}
+}